Crimping-machine



(No Model.) 2 Sheets-Sheet 1. J. C. LOCKETT. URIMPING MACHINE.

No. 485,204. Patented Nov. 1, 1892.

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J. C. LOOKETT. GRIMPING MACHINE.

No. 485,204. Patented Nov. 1, 1892. I

UNITED STATES PATENT OFFICE.

JOSEPH O. LOOKETT, OF BOSTON, ASSIGNOR TO CHARLES S. PIERCE, OFBROOKTON, MASSACHUSETTS.

CRlMPlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 485,204, dated November1, 1892.

Application filed September 18 1891. Serial No. 4 4 (N0 model-J To allwhom it may concern:

Be it known that I, JOSEPH O. LOCKETT, of Boston, in the county ofSuffolk, State of Massachusetts, have invented certain new and usefulImprovements in Crimping-Machines, of which the following is adescription sufficiently full, clear, and exact to enable any personskilled in the art or science to which said invention appertains to makeand use the same, reference being had to the accompanying drawings,forming part of this specification, in which- Figure l is a sideelevation of my improved crimping-machine; Fig. 2, a front elevation ofthe same, partly in section, the standard of body being removed; Fig. 3,a horizontal section taken on line a; 00 in Fig. 1; Fig. 4, a face Viewof one of the jaws, and Fig. 5 a transverse section of the same.

Like letters and figures of reference indicate corresponding parts inthe different figures of the drawings.

My invention relates especially to machines for crimping the uppers ofboots and shoes;

and it consists in certain novel features, hereinafter fully set forthand claimed, the object being to produce a simpler, cheaper, and moreeffective device of this character than is now in ordinary use.

The nature and operation of the improvement will be readily understoodby all conversant with such matters from the following explanation.

In the drawings, A represents the base or standard of the machine, onwhich an upright B is disposed. A shaft b, provided with fast and loosepulleys d d, is journaled in said upright. The opposite end of saidshaft bears a pinion f. A vertical track or way 0 is formed on one sideof the upright B, and a shaft 9 is journaled in the top of said uprightand projects through said ways. On the shaft 9 a crank-gearD is mounted,said gear meshing with the driving-pinion f. A block E is fitted toslide in the ways 0, and a rod h, pivoted eccentrically on the gear d,connects it with said block, said gear driving the block in its ways Cin the ordinary manner of crank mechanisms. At the rear of the way C andparallel therewith there is a vertically-arranged groove 72', formed inthe upright B. The crimping-blade H is secured by screws 5 to the lowerend of the sliding block E and projects outwardly at the front of themachine. A vertically-adj ustable arm j projects. rearwardly from theblade H, and is provided at itsouter end with a roll or wheel m, whichworks in the vertical groove 71. of the upright B. Said arm isadjustable on the blade by means of screws k, which pass through theslot in said arm into said blade. The table I is mounted horizontally onthe top of the body J, and on a staudardp at one end of said table ahorizontally-swinging lever q is pivoted. Said lever is provided at itsouter end with a vertically-arranged block 1", which registers with theupright groove h, and which is normally disposed in the path of thewheel m. On the forward end of the standard p a hub t is formed, throughwhich the rod 0 is fitted to slide longitudinally. Said hub is chamberedat 20 (see Fig. 2) around said rod. The other end of the rodis securedthereto at y, and a nut .2 is turned thereon, said nut being of a sizesuitable to slide in said chamber. Between the nut and bottom of saidchamber a push-spring 15 is disposed around said rod. To the inner endof the rod 1; a crimping-jawP is secured. end of the lever (1 playsloosely on the rod 12, as best shown in Fig. 3, and between said leverand the jaw P a push-spring 16 is interposed. Registering with the jaw Pthere is a coinpanion crimping-jaw P, which is mounted in in the samemanneuin the hub 25, its sliding rod '1) being spring pushed andprovided with a out 2. The jaws P P have their upper edges formed on acurve at- 17, conforming to the shape of the curve 18 of thecrimping-blade H. On the inner or working faces of the jaws P P there isformed a series of corrugations 20, which follow the line of curve ofthe edge of said jaws. An angular rod 25 projects horizontally from thefront of The forward the table I, and fitted to slide on said rod 5 r toprevent lateral movement thereof.

said stop its slot 26 will register with the opening between the jaws PP. The plate M is designed to feed the upper leather onto the jaws andavoid the danger of injury to the hands of the operator from thecrimpingblade.

In use the leather to be crimped is disposed on the feed plate orcarriage M, which is moved from right to left by the operator, as viewedin Fig. 3. Power being applied to the shaft 1), the slidingcrank-actuated block E is set in motion, forcing the blade H through thecartriage-slot 26 and between the jaws P P. As the block E descends, thewheel m engages the block 0" on the lever q, throwing that end of thelever outward. The opposite end of said lever, encircling the rod '0,drives the spring 16 against the jaw P, jamming said jaw tightly againstthe blade-H. The tension of the companion jaw P may be regulated at willby the force of its spring 15. Guide-rods 30 on the hubs t t slide inthe jaws and serve Corrugated inner faces of the jaws engaging theleather retard the downward motion thereof and cause it to be formed orcrimped into a shape correspondingto the curve of the crimping-blade ina manner which will be understood by all conversant with such matterswithout a more explicit description.

Having thus explained my invention, what I claim is- 1. In a crimpingmachine, a body, two spring-tensioned crimping-jaws mounted on rods inalignment on said body, a springpushed horizontal lever playing looselyon one of said rods, a verticallymoving crimpingblade adapted to workbetween said jaws, and

a wheel on said blade in position to engage the free rear end of saidlever and automatically increase the tension on the correspondingcrimping-jaw, substantially as specified.

2. In a crimping-machine, the combination of a table, avertically-arranged way, a crankactnated block mounted to slide therein,a vertically-arranged crimping-blade secured to said block, twospring-pushed rods mounted in alignment on said table and respectivelybearin g crimping-jaws, a roll mounted on said blade, a horizontal leverpivoted on said table and having its forward end loose on one of the jaw-rods and its rear end normally disposed in the path of said roll, anda pushspring interposed between said jaw and the adjacent end of saidlever, substantially as described.

3. In a crimping-machine, the body and table, in combination with acrank-actuated slide E, the crimping-blade H, and roller m, mountedthereon, the spring-tensioned crimpin g-j aws P P, fitted to slide onsaid table, and a spring-pushed lever q, pivoted on said table andadapted to actuate said jaw P, the free end of said lever being normallydisposed in the path of said wheel m, substantially as described.

4. In acrimping-machine,the spring-pushed crimping-jaws P P, incombination with the' table, the rod 25, and the curve-slotted carriagefitted to slide on said rod and registering with said jaws,substantially as described.

JOSEPH C. LOGKETT.

Witnesses:

O. M. SHAW, KATHARINE DURFEE.

